v3.25.1
STOCKHOLDERS' DEFICIT - Narrative (Details) - USD ($)
$ / shares in Units, $ in Millions
3 Months Ended
Mar. 31, 2025
Mar. 31, 2024
Special Warrants    
Class of Stock [Line Items]    
Special warrants, number of securities called by each warrant (in shares) 1  
Special warrants, exercise price per share (in dollars per share) $ 0.001  
Special warrants, conversion terms, ownership percentage of common stock (as a percent) 4.99%  
Special warrants, conversion terms, ownership percentage of capital stock or voting interests (as a percent) 22.50%  
FCC petitions for declaratory ruling, percentage of voting stock and equity owned by non-US individuals and entities (up to) 22.50%  
FCC petitions for declaratory ruling, foreign owned percentage permitted 100.00%  
Special Warrants | Common Stock    
Class of Stock [Line Items]    
Conversion of special warrants to class A and class B shares (in shares) [1]   (58,534)
Class A Shares | Common Stock    
Class of Stock [Line Items]    
Conversion of special warrants to class A and class B shares (in shares) [1] 0 58,534
Class B Shares | Common Stock    
Class of Stock [Line Items]    
Conversion of special warrants to class A and class B shares (in shares) [1] 0 0
Awards Vesting Based On Service Conditions    
Class of Stock [Line Items]    
Unrecognized compensation cost $ 26.1  
Unrecognized compensation cost, weighted average period (in years) 1 year 10 months 24 days  
Minimum    
Class of Stock [Line Items]    
Award vesting period (in months) 1 year  
Maximum    
Class of Stock [Line Items]    
Award vesting period (in months) 3 years  
[1] The Company's Preferred Stock is not presented in the data above as there were no shares issued and outstanding in 2025, 2024, or 2023.